#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream in("submultimi.in");
ofstream out("submultimi.out");
vector<int> subm;

void afis()
{
    for(int i=0; i<subm.size(); ++i)
        out<<subm[i]<<" ";
    out<<'\n';
}
void bkt(int nr, int n)
{
    if(nr>n)
    {
        afis();
        return;
    }
    subm.push_back(nr);
    bkt(nr+1, n);
    subm.pop_back();
    bkt(nr+1, n);
}
int main()
{
    int n;
    in>>n;
    bkt(1, n);
    return 0;
}